Bring the wipes when going through airport security, and when using airline seat belts and tray tables because they can be a bacterial nightmare.

These were some of the findings of an NBC Today investigation of major airports and airlines in the U.S., a report that suggests that airlines are more concerned with swift turnaround times than healthy aircraft interiors.

Correspondent Jeff Rossen and his team took 13 swabs of airport check-in kiosks, TSA bins in security lanes, airline seat belts, tray tables, arm rests and seat pockets, sent the swab kits to a certified lab, and found that nine were contaminated with dangerous levels of bacteria.